Apparatus for dyeing



W. H. DAVIS.

APPARATUS FOR DYEING.

APPLICATION FILED JAN.3,1919.

1,407,387, Patented Feb. 21, 1922.

5 k n \a (Q o a J I L A a x Q N R1 N \1 H H Q: n S $3 M- Q- 0 o a o u a o o O 0 O 0 O O O O IN m o o 0 o o o o o N O O 0 O O O O O A o gnnsadnr u J V 11 A I 5%! iTED STATES i a i WADE H. DAVIS, OF WALNUT COVE, NORTH CAROLINA.

APPARATUS FOR DYEING.

Application filed January 3, 1919. Serial No. 269,546.

To all whom it may concern:

Be it known that I, WADE H. DAvrs, a citi: zen of the United States, residing at Walnut Cove, in the county of Stokes and State of North Carolina, have invented certain new and useful Improvements in Apparatus for l)ye1ng; and I do hereby declare the followmg to be a full, clear, and exact description of the invention, such as will enable others skilled in the art towhich it appertains to make and use the same.

This invention appertains to an apparatus for treating yarns with liquid and is particularly designed for bleaching or dyeing. It comprises the particular form of kier illustrated in generic application Serial No. 178,717, filed July 5th,1917, as illustrated in Figure 1 thereof.

The accompanying drawing shows a cross section through my improved apparatus and illustrates partly in section and partly in sldeclevation the associated mechanism for forclng the treating liquids through the yarn or like fibrous material charged in the kier.

A kier 1, having a conical bottom 2 and a false bottom 3 spaced therefrom forms a chamber 4. Communicating with the chamber 4 by being inserted through the false bottom 3 are holders 5, having perforations or composed of foraminous material whereby liquor introduced into the chamber 4 may be passed up into the holders 5 and expelled therefrom through the perforations or interstices of such spindles.

The holders are preferably closed at their upper ends in any approved manner. As shown in the drawing, the closure is in the form of plugs. 6 secured to the holders 5, whereby when such follower T is depressed the fibrous material, as for instance yarn, which is wound about the holders 5, may be subjected to pressure to compress the entire" mass to substantially uniform density. The compression of the fibrous mass may be accomplished by moving the follower in any approved manner, as by the use of the handwheel 8 and screw 9, said screw having a swivel connection with the follower plate 7.

To carry out the process, it is desirable that the kier be sealed watertight, even to water under pressure and while this may be accomplished with any usual and ordinary form of mechanism or apparatus, the drawing shows a cover-10, hinged to the kier 11, and with a compression screw 12, whereby a watertight joint in substantially the usual manner is provided.

Communication with the chamber 4 is provided through a pipe 13, while communicationwith the interior of the kier 1 is provided through a pipe 14. It is obvious that liquor introduced through the pipe 13 will first fill the chamber 4 and then flow upwardly through the spindles 5 and outwardly through the perforations or interstices into the interior of kier 1 and outwardly through the pipe 14; and reversing the flow, the liquor would be introduced through the pipe 14, filling the interior of the kier 1, flowing inwardly through the perforations of the holders 5 to the chamber 4 and outwardly through the pipe 13.

It is desirable to provide a forced flow of the liquor in either direction as indicated, through the pipes 13 and 14. It is also desirable to first introduce into the kier plain water, preferably hot water, for the purpose of initially wetting, soaking or softening the fibrous material, before the bleaching or dyeing chemicals or pigments are applied. For this purpose, a pump 15 is employed, communicating through the pipes 16 and 17 with a reservoir 18, which may contain clear water or other liquor for the initial wetting or soaking of the fibrous material. The liquor which we will for this reason refer to as water is drawn through the pipes 16 and 19 into the pump 15 and, by reason of the interposition of the check-valves 20 and 21, the flow from the pipe 16 is expelled from the pump 15 into the four-way valve 12. With the valves set in the position as shown in the drawings, the flow will be through the pipe 13 into the chamber 4 and in and out through the kier 1, as previously described. Whenpassing out through the pipe 14, the flow is by reason of the position of the fourway valve 22 directed into the pipe 23 and thence into the tank 24. 1

The tank 24 is provided with an inlet enclosure 25, whereby dyeing or bleaching material may be introduced into the tank 24, so that as the water flowing outwardly through the pipes 14 and 23 is introduced into tank 24, it takes up and becomes the fluid vehicle for the dyeing or bleaching material contained in the tank 24. When the tank 24 and kier 1- have been filled with water from the reservoir 18 to the desired pressure, which experience indicates as preferably at about I uponthe holders 5.

For the purpose of uniformity of dyeing or bleaching, it is desirable to reverse the flow bleaching fluid, which is acof the dyeing or complished by reversing the four-way valve '22, the flow of the fluid vehicle being thereby established from the tank 24 through the pipes 27 16, 19 and-14c to the kier, returning through the pipes 13 and 23 to the tank 24. The four-Way valve may be reversed as often as found desirable throughout the cycle of operation, thereby'reversing the flow of the fluid vehicle at such intervals as experience and practice demonstrate as desirable.

The development of pressure upon the fluid vehicle tends to force the processing fluid into engagement with all the fibres of the fibrous mass, while the continuous fiow and especially the reversal of the flow of the fluid in opposite directions overcomes any tendency of sedimentation or other damaging results due to stagnation of the fluid. It also iprovides for the wetting or soaking of the brous material under pressure and, without opening the kier, the introduction of the dyeing or bleaching material, and the continuing of the process'until sufliciently treated. a

What is claimed is:

1. In an apparatus for treating yarns and the like with a liquid, a container having an open top, a plurality of yarn holders arranged in parallel relation extending toward said top, said yarn holders being adapted to permit liquid to enter them and to issue therefrom throughout their lengths, a cover for said container, a follower plate having an under surface of an area suflicient to cover the tops of said holders, a threaded rod swivelled to said follower plate and projecting through said cover, a threaded member carried by said cover through which said threaded rod extends, means whereby-said threaded rod may be rotated, and means for clamping the cover fluid tight upon the 'container.

2. In an apparatusffor treating yarns and the like with a liquid, a container having an open top, a plurality of parallel. yarn holders fixed within the container and extending toward the top, said yarn holders being conaructed to permit circulation of liquid laterally therefrom intothe container and in the reverse direction; a cover hinged to said container, means whereby the cover may be clamped in closed position fluid tight, a follower plate carried by said cover adapted to compress the yarn on said holders when the cover is closed, means whereby said follower plate may be pressed into contact with the yarns on said holders, said means comprising a rod connected to the center of the follower plate and extending through said cover, and means for operating the rod from the exterior ofsaid cover to apply pressure to the yarn.

' In testimony whereof I afiix my signature.

WADE H. DAVIS. 

